Hour Meters


Universal Application. Singular Performance. You'll find Honeywell hour meters where quality, performance and rugged construction are needed. Track and record elapsed time more effectively and efficiently (hours or tenths of hours). Log equipment running time to assure proper maintenance of expensive machines or systems or track warranty programs. Often eliminate the guesswork with elapsed hours for better machine resale value, or logging actual time on your rental products.

    Honeywell hour meters offer:

  • Multiple power, display, shape and data options,
  • Analog or LCD displays,
  • ac/dc, ac, or dc product families,
  • Shock and vibration resistance,
  • Noiseless performance.


    LM Series Benefits:

    LM Series microcontroller unit LCD hour meters are sealed digital instruments to monitor and record elapsed running time. The large 7 mm display eases readability and offers backlight options and a running indicator. The hour meter also features a long reset time to offer customers the protection against malfunction of reset. Shock and vibration resistance allow for use in a wide variety of tough transportation applications including agricultural vehicles, blowers, engines, heavy-duty construction vehicles, heavy-duty trucks, material-handling equipment, and mowers.

  1. LM Series - Features:
    1. Accuracy: ±200 ppm/hour,
    2. Backlight and large 7 mm display,
    3. Digital, microcontrol unit LCD,
    4. Durable design of mounting assembly,
    5. IP67 environmental sealing, Customizable.


    20000 Series Benefits:

    From testing purposes to leasing applications, maintenance and warranty programs, this often accurate, reliable hour meter passes 100% function and timing accuracy tests before shipping. All parts are in process inspected and benefit from an uncommon design — integrating the motor and frame into one substructure.

  3. 20000 Series - Features:
    1. Polycarbonate, shock resistant, Tamper-proof case,
    2. Totally sealed, single phase, synchronous,
    3. Permanently lubricated motor, Custom logo dials,
    4. Screw terminal, wire lead or 1/4 in blade terminals,
    5. special wire lengths.

  4. 28100 Series Benefits:

    Unlike conventional hour meters, this hour meter operates over a full range of voltages and frequencies. Working accurately over a voltage range of 90 Vac to 264 Vac and frequencies of either 50 Hz or 60 Hz, it fits a wide range of applications, anywhere in the world. It offers reduced parts count and inventories. With fewer purchase orders and reduced service parts, the meter often eliminates production line errors.

  5. 28100 Series - Features:
    1. Records time 0 to 99,999.9 hours,
    2. Accuracy ±0.02 %, UL recognized,
    3. CSA (UL), CE mark Totally sealed from dirt and moisture,
    4. Termination - 1/4 in spade,
    5. Options include custom lens and terminal orientation (up, down, straight).

  6. 301 Series Benefits:

    Often ideal for multiple applications: medical, office equipment, electric panels, tanning beds, fans, and furnaces.

  7. 301 Series - Features:
    1. Offering enhanced accuracy and quiet operation in an economical design,
    2. The display reads to 1/100 of an hour for greater resolution,
    3. Available in standard case configurations that can interchange with virtually all meters on the market.

  8. Possibilities That’s the most powerful part:

    Honeywell Sensing and Control (S&C) offers gold-standard parts, as well as one-stop convenience for engineering excellence — meaning topnotch products or completely customized creations, as well as all the possibilities that lie between. You may have impossible needs and deadlines, but the experts at Honeywell are ready with powerful hour meter options. From the factory floor to the assembly line, from packaging machinery to construction equipment — from the smallest spaces to any worldwide application or mount, Honeywell delivers enhanced reliability and performance in compact, cost-effective packages.

Ac/Dc Hour Meters LM Series
Hours 0 to 99,999.9
Sealing IP67
Voltage range/frequency 9 V to 64 V dc/ac (50 Hz to 500 Hz)
Accuracy ±200 ppm/hour
Termination 1/4 in blades; 3/16 in blades
Approvals UL, CE
Mount/panel cutout opening diamond and diamond (no bezel): 24,13 mm x 44,45 mm [0.95 in H x 1.75 in W] standard: 24,13 mm x 36,83 mm [0.95 in H x 1.45 in W] round: Ø 50,8 mm [Ø 2.00 in] rectangle: 22,35 mm x 44,96 mm [0.88 in H x 1.77 in W]
Operating temperature -40 °C to 85 °C [-40 °F to 185 °F]
Number size 7 mm
Case material makroblend

Ac Hour Meters 20000 Series 28100 Series 301 Series
Counting range records up to 99,999.9 hours with auto - matic roll over to zero 0 to 99,999.9 hours with automatic roll over to zero 0 to 99,999.90 hours
Sealing IP65 IP66 front (IP40 rear) IP40 front (IP00 terminals)
Voltage range/frequency 24 Vac, 120 Vac, 240 Vac/50 Hz, 60 Hz 90 Vac to 264 Vac/50 Hz, 60 Hz 120 Vac, 240 Vac/50 Hz, 60 Hz
Accuracy ±0.02 % ±0.02 % ±0.02 %
Termination screw, 7 in lead wires 1/4 in spade 1/4 in spade
Approvals UL, CSA, CE UL, CSA, CE UL, CE
Mount/panel cutout opening 2-screw, rectangular and square: 1.45 in x 0.95 in round: 2.0 in 2-screw and rectangular: 1.45 in x 0.95 in round: 2.0 in dia. 2-screw and rectangular: 1.45 in x 0.95 in
Operating temperature -54 °C to 68 °C [-65 °F to 154 °F] -40 °C to 85 °C [-40 °F to 185 °F] -25 °C to 70 °C [-13 °F to 158 °F]
Number size 3 mm [0.12 in] 3 mm [0.12 in] 4 mm [0.16 in]
Case material polycarbonate polycarbonate polycarbonate


    85000 Series:

    Highly reliable drive mechanism; odometer gear train and accurate quartz crystal timing provides enhanced performance. UL/CSA recognized, with a variety of mounting styles. An improved odometer gear train, plus snap-together integrated chassis fits into a shock proof, totally sealed case often resistant to many acids and solvents. All parts are inprocess inspected, and every meter must pass 100% function, burn-in, and timing accuracy test before shipping.

  1. 85000 Series - Features:
    1. Custom CMOS integrated circuit,
    2. Indicates operating time in hours and tenths,
    3. Plus has a running indicator, Totally sealed,
    4. Battery system voltages: 6, 12, 24, 36, 48, 60, 72 and 80 Vdc,
    5. UL recognized (File number AU1774),
    6. CSA certified (File number LR42455-12).


    82400 Series Benefits:

    Perfect for aftermarket and service replacements, as well as cleaning equipment, compressors, generators, lawn and garden, mining, sports vehicles and more.

  3. 82400 Series - Features:
    1. Non-polarity sensitive design,
    2. Reduces installation time and possibility of reverse polarity harness assembly,
    3. Standard case sizes and mounting for universal fit to most panel openings,
    4. Ultrasonic welded lens prevents
    5. Moisture and dust intrusion,
    6. Terminals sealed to prevent moisture and dust intrusion,
    7. Can run off of many types of alternators so meter is only operating,
    8. When vehicle is running (user must test for compatibility to their alternator output),
    9. IP66 rated.

Dc Hour Meterss 85000 Series 82400 Series
Counting range 10,000 hour version standard, with automatic recycle to zero 0 to 9999.9; 0 to 99,999.9 (optional)
Sealing IP66 IP66
Voltage range 5 Vdc to 110 Vdc 10 Vdc to 80 Vdc (polarity insensitive)
Accuracy ±0.02 % ±0.02 %
Termination 1/4 in male blade, #8-32 stud, Deutsch, Packard terminals 1/4 in spade
Approvals UL, CSA
Mount/panel cutout opening 2-screw, stirrup: 1.45 in x 0.95 in round, flush, 3-screw: 2.0 in 2-screw and rectangular: 1.45 in x 0.95 in 3-screw and round: 2.0 in dia.
Operating temperature -40 °C to 85 °C [-40 °F to 185 °F] 40 °C to 85 °C [-40 °F to 185 °F]
Number size 3 mm [0.12 in] 3 mm [0.12 in]
Case material polyester polycarbonate

Hour Meters